18QHTF21-19.43084-PD

Oscillators Overview

The 18QHTF21-19.43084-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 19.43084 MHz and utilizes an LVCMOS output interface. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, designed for surface-mount applications.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output signal format
• Features a compact 4-SMD no-lead package

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication systems utilizing standard clock signals
• Embedded control circuits needing precise timing references
• Consumer electronics with space-constrained PCB layouts

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your board layout specifications. Check for any RoHS compliance documentation if required by your manufacturing standards. Validate the standby pin configuration for your power management strategy.

Oscillators Selection Notes

Select this component when a stable 19.43084 MHz reference is needed in a minimal footprint. Consider the LVCMOS interface compatibility with your downstream logic levels. Evaluate the power-down feature necessity for battery-operated applications. Compare the 1.8V operating range against available power supplies in your design. Assess the thermal performance requirements for the small SMD package.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which focuses on miniature surface-mount solutions. The series typically offers various frequencies within a standardized 2.0x1.6 mm package. It serves as a timing source for digital circuits requiring low profile and reliable frequency stability. The manufacturer emphasizes quartz crystal expertise for these frequency control products.

Oscillators Replacement Considerations

Direct substitutes must match the 19.43084 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent electrical characteristics such as phase noise and stability. Ensure compatible pinout and mechanical dimensions for seamless integration.